> What makes you so curious about the details of CAR setup?
Thank you for you detailed explanation, it helps me a lot.
I was trying to fix the S3 problem on my board m2v-mx_se. Basically, it
dies at setting new ESP code when I wake up the machine from S3. I am
not quite understand why it dies there. That assembly code just set the
new esp, and clear all registers. I didn't see any reason why booting
stops there.
In addition, I am also not quite understand why we need to copy data
from resume_backup_memory to RAMBASE. I thought all previous state info
are saved at RAM after S3 sleep. Why do we need to do back_resume() at
this point(it is still at cache_as_ram step)?
Thanks!
Best,
Fengwei